- push-button (adj.)
[push-button 词源字典]
- "characterized by the use of push-buttons," 1945, originally of military systems, earlier "operated by push-buttons" (1903), from push-button (n.), 1865, from push (v.) + button (n.). Earlier was press-button (1892), from the noun (1879).[push-button etymology, push-button origin, 英语词源]